Cummins/Onan — With-Load Standby System Test

A Cummins/Onan service procedure — check it applies to your exact model before use.

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Procedure

1. 1. Move the Load/No-Load switch on the control circuit board to the Load position (Figure 2-5).
2. 2. Keep the Auto/Man switch in the Auto position at all times to enable the automatic retransfer function.
3. 3. Replace the cover over the circuit board and close the cabinet door. and the rear side of the cabinet door pres- ents a shock hazard that can cause severe personal injury or death. Close and lock the cabinet door when not working inside cabi- net.
4. 4. Notify occupants prior to removing utility power.
5. 5. Turn off any electronic devices, computers etc. prior to removing utility power.

Source: manual:913-0505B Onan RST-series 60-100-200 Amp Automatic Transfer Panel Service manual (09-2004).pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.